I got this Spitfire windshield for FREE from one of my son's. Easy to take on and off. I use it mainly in cool weather, but also put it on when I'm gonna do some "road duty" in the summer. Keeps the bugs outta my teethers
As seen in the photo below, I also made an extension which I use in summer also. I used an old helmet faceshield, trimmed it to match the lines of the Spitfire and drilled 2 holes on to mount it on the Spitfire. As I sit taller in the saddle, this extension take most of the buffeting off my helmet.
This would be the "thrifty me"!